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+// -*-C++-*-
+// FlexLexer.h -- define interfaces for lexical analyzer classes generated
+// by flex
+
+// Copyright (c) 1993 The Regents of the University of California.
+// All rights reserved.
+//
+// This code is derived from software contributed to Berkeley by
+// Kent Williams and Tom Epperly.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+
+// Neither the name of the University nor the names of its contributors
+// may be used to endorse or promote products derived from this software
+// without specific prior written permission.
+
+// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+// IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE.
+
+// This file defines FlexLexer, an abstract class which specifies the
+// external interface provided to flex C++ lexer objects, and yyFlexLexer,
+// which defines a particular lexer class.
+//
+// If you want to create multiple lexer classes, you use the -P flag
+// to rename each yyFlexLexer to some other xxFlexLexer. You then
+// include <FlexLexer.h> in your other sources once per lexer class:
+//
+// #undef yyFlexLexer
+// #define yyFlexLexer xxFlexLexer
+// #include <FlexLexer.h>
+//
+// #undef yyFlexLexer
+// #define yyFlexLexer zzFlexLexer
+// #include <FlexLexer.h>
+// ...
+
+#ifndef __FLEX_LEXER_H
+// Never included before - need to define base class.
+#define __FLEX_LEXER_H
+class mhmakefileparser;
+
+#include "refptr.h"
+
+struct YYSTYPE
+{
+ string theString;
+ int ival;
+};
+typedef struct YYSTYPE YYSTYPE;
+
+#include "location.hh"
+
+#include <iostream>
+# ifndef FLEX_STD
+# define FLEX_STD std::
+# endif
+
+extern "C++" {
+
+struct yy_buffer_state;
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+typedef int yy_state_type;
+
+class FlexLexer {
+public:
+ FlexLexer() : m_BraceIndent(0) {}
+ virtual ~FlexLexer() { }
+
+ const char* YYText() const { return yytext; }
+ int YYLeng() const { return yyleng; }
+
+ virtual void
+ yy_switch_to_buffer( struct yy_buffer_state* new_buffer ) = 0;
+ virtual struct yy_buffer_state*
+ yy_create_buffer( FLEX_STD istream* s, int size ) = 0;
+ virtual void yy_delete_buffer( struct yy_buffer_state* b ) = 0;
+ virtual void yyrestart( FLEX_STD istream* s ) = 0;
+
+ virtual int yylex(YYSTYPE *yylval, yy::location* yylloc) = 0;
+
+ // Switch to new input/output streams. A nil stream pointer
+ // indicates "keep the current one".
+ virtual void switch_streams( FLEX_STD istream* new_in = 0,
+ FLEX_STD ostream* new_out = 0 ) = 0;
+
+ int debug() const { return yy_flex_debug; }
+ void set_debug( int flag ) { yy_flex_debug = flag; }
+
+protected:
+ char* yytext;
+ int yyleng;
+ int yy_flex_debug; // only has effect with -d or "%option debug"
+
+public:
+
+ struct INSTACK
+ {
+ YY_BUFFER_STATE m_BufferState;
+ ifstream m_Stream;
+ string m_FileName;
+ yy::location yylloc;
+ INSTACK(YY_BUFFER_STATE BufferState, const string &FileToOpen, const string &PrevFileName, yy::location *pLocInfo) :
+ m_BufferState(BufferState),
+ m_FileName(PrevFileName),
+ yylloc(*pLocInfo),
+ m_Stream(FileToOpen.c_str(), ios_base::in)
+ {
+ }
+ bool fail() const
+ {
+ return m_Stream.fail();
+ }
+ ifstream *GetStream()
+ {
+ return &m_Stream;
+ }
+ };
+ class mystack: public iterstack<INSTACK*>
+ {
+ public:
+ ~mystack()
+ {
+ iterator It=begin();
+ while (It!=end())
+ {
+ delete *It;
+ It++;
+ }
+ }
+ void pop()
+ {
+ INSTACK *pToRemove=top();
+ iterstack<INSTACK*>::pop();
+ delete pToRemove; /* Buffer does not need to be deleted because the lexer does this when it calls the pop */
+ }
+ };
+ int m_BraceIndent;
+ size_t m_IndentSkip;
+ iterstack<int> m_IndentStack;
+ bool m_IgnoreIncludeError;
+ string m_InputFileName;
+ string m_curtoken;
+ mystack m_IncludeStack;
+ mhmakefileparser *m_pParser;
+ mhmakefileparser *GetParser()
+ {
+ return m_pParser;
+ }
+public:
+ string &GetInputFilename()
+ {
+ return m_InputFileName;
+ }
+};
+
+}
+
+#if defined(yyFlexLexer) || ! defined(yyFlexLexerOnce)
+// Either this is the first time through (yyFlexLexerOnce not defined),
+// or this is a repeated include to define a different flavor of
+// yyFlexLexer, as discussed in the flex manual.
+#define yyFlexLexerOnce
+
+extern "C++" {
+
+class mhmakeFlexLexer : public FlexLexer {
+public:
+ // arg_yyin and arg_yyout default to the cin and cout, but we
+ // only make that assignment when initializing in yylex().
+ mhmakeFlexLexer( FLEX_STD istream* arg_yyin = 0, FLEX_STD ostream* arg_yyout = 0 );
+
+ virtual ~mhmakeFlexLexer();
+
+ void yy_switch_to_buffer( struct yy_buffer_state* new_buffer );
+ struct yy_buffer_state* yy_create_buffer( FLEX_STD istream* s, int size );
+ void yy_delete_buffer( struct yy_buffer_state* b );
+ void yyrestart( FLEX_STD istream* s );
+
+ void yypush_buffer_state( struct yy_buffer_state* new_buffer );
+ void yypop_buffer_state();
+
+ virtual int yylex(YYSTYPE* yylval, yy::location* yylloc);
+ virtual void switch_streams( FLEX_STD istream* new_in, FLEX_STD ostream* new_out = 0 );
+
+protected:
+ virtual int LexerInput( char* buf, int max_size );
+ virtual void LexerOutput( const char* buf, int size );
+ virtual void LexerError( const char* msg );
+
+ void yyunput( int c, char* buf_ptr );
+ int yyinput();
+ int yywrap();
+
+ void yy_load_buffer_state();
+ void yy_init_buffer( struct yy_buffer_state* b, FLEX_STD istream* s );
+ void yy_flush_buffer( struct yy_buffer_state* b );
+
+ int yy_start_stack_ptr;
+ int yy_start_stack_depth;
+ int* yy_start_stack;
+
+ void yy_push_state( int new_state );
+ void yy_pop_state();
+ int yy_top_state();
+
+ yy_state_type yy_get_previous_state();
+ yy_state_type yy_try_NUL_trans( yy_state_type current_state );
+ int yy_get_next_buffer();
+
+ FLEX_STD istream* yyin; // input source for default LexerInput
+ FLEX_STD ostream* yyout; // output sink for default LexerOutput
+
+ // yy_hold_char holds the character lost when yytext is formed.
+ char yy_hold_char;
+
+ // Number of characters read into yy_ch_buf.
+ int yy_n_chars;
+
+ // Points to current character in buffer.
+ char* yy_c_buf_p;
+
+ int yy_init; // whether we need to initialize
+ int yy_start; // start state number
+
+ // Flag which is used to allow yywrap()'s to do buffer switches
+ // instead of setting up a fresh yyin. A bit of a hack ...
+ int yy_did_buffer_switch_on_eof;
+
+
+ size_t yy_buffer_stack_top; /**< index of top of stack. */
+ size_t yy_buffer_stack_max; /**< capacity of stack. */
+ struct yy_buffer_state ** yy_buffer_stack; /**< Stack as an array. */
+ void yyensure_buffer_stack(void);
+
+ // The following are not always needed, but may be depending
+ // on use of certain flex features (like REJECT or yymore()).
+
+ yy_state_type yy_last_accepting_state;
+ char* yy_last_accepting_cpos;
+
+ yy_state_type* yy_state_buf;
+ yy_state_type* yy_state_ptr;
+
+ char* yy_full_match;
+ int* yy_full_state;
+ int yy_full_lp;
+
+ int yy_lp;
+ int yy_looking_for_trail_begin;
+
+ int yy_more_flag;
+ int yy_more_len;
+ int yy_more_offset;
+ int yy_prev_more_offset;
+};
+
+}
+
+#endif // yyFlexLexer || ! yyFlexLexerOnce
+
+#endif // FLEXLEXER_H